'Who owns the method in a sequence diagram?
Say we have the diagram:
I wonder whether it's known by the diagram who owns the methods.
For instance: Is pickup a method of Waiter? Is serve food then a method of Patron?
More generally, do the arrows show the owners of the methods?
Solution 1:[1]
This is a counterintuitive (ie bad) choice of method names.
Fred is ordering the food, that's right. He's ordering the food by calling takeOrder(), which belongs to the waiter. Imagine Frank tries to call order food on anyone other than a waiter. It wouldn't work, because they're not waiters, and they don't have takeOrder().
The methods belong to the objects that are being called.
Sources
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Source: Stack Overflow
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